An ultrasonic probe fixture

Abstract

The invention belongs to the field of an ultrasonic detection technology in nondestructive testing and particularly relates to an ultrasonic probe clamp. Aiming to solve the problems in the prior art, the invention provides the ultrasonic probe clamp which is applicable to various sizes of probe outer diameters in a range of 12-24mm, is stable to clamp, is stable to scan and is good in coupling. The ultrasonic probe clamp is characterized in that a base (3) is in an annular structure with annular lug bosses at inner and outer sides; a supporting block (2) is in an arc-shaped structure with a lug boss at the lower part; a thread at the bottom of the lug boss of the supporting block (2) is engaged with a thread on the top of an outer side part of the inner side lug loss of the lug bosses of the base (3); a clamp inner ring (4) is mounted on a groove of an inner side part of the inner side lug loss of the base (3). According to the ultrasonic probe clamp, the supporting block 2, the clamp inner ring 4 and the base 3 are adopted; the relative central position of the supporting block 2 can be changed through rotating the clamp inner ring 4, so that a probe can be clamped to randomly adjust the diameter in a range of 12-24mm. The movement of the probe adopts a rolling manner of a roll idler wheel so that the scanning stability is guaranteed. A water inlet hole 6 is adjacent to the probe so as to guarantee the water coupling effect.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic testing in nondestructive testing, and in particular relates to an ultrasonic probe fixture. Background technique [0002] Ultrasonic testing technology is one of the non-destructive testing methods used in the industry. It mainly uses the principle of ultrasonic reflection to detect the position and size of internal defects in the workpiece, and to measure the thickness of the material. Ultrasonic testing requires the surface to be inspected to have a certain degree of smoothness, and the gap between the probe and the surface to be inspected needs to be filled with coupling agent to ensure sufficient acoustic coupling. In order to ensure a good fit between the probe and the surface of the workpiece to be inspected, and to provide a good coupling agent during scanning, it is necessary to use a probe fixture with a certain structure to achieve the above functions. At the same time, considering ...

AI Technical Summary

Problems solved by technology

[0004] (1) The clamping size is single, and the probe size cannot be replaced;

[0005] (2) The stability is poor, and the probe fixture is easy to tip over when scanning to the weld;

[0006] (3) Poor water coupling, unable to maintain sufficient water film between the probe and the workpiece

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